There is an interesting study out of the UK that says that super fit masters runners do no better on balance tests than sedentary, non-runners even though they crush them in many other areas.
"Balance matters not just for performance, but for longevity. According to NHS statistics, falls are among the major causes of debilitating injury as we age with one third of people over the age of 60 and around half of those in their 80s and over falling at least once a year. In their 20s and 30s, most adults can easily stand on one leg, eyes closed, for 30 seconds or longer whereas the average 70-year-old manages only 4-5 seconds."
How long can you stand on one foot with eyes closed? Jesus, I just tried it and fell over after 3 seconds. Does that mean I'm like 75?